Abstract: Provided is an operating method of a storage device. The method includes providing temperature information of each of a plurality of volatile memory devices in the storage device to a host device; and receiving a setting command related to a refresh operation of the plurality of volatile memory devices from the host device, wherein the plurality of volatile memory devices are classified into groups based on temperature information, and wherein the setting command indicates a number of rows of the plurality of volatile memory devices to be refreshed differently for each of the groups based on the temperature information.

Abstract: A method for forming a line and a space pattern, according to one embodiment of the present invention, comprises exposing a mask in a first direction and a second direction on a substrate and stitching same. The method for forming a line and a space pattern comprises the steps of: performing first exposure on the substrate so that first shots of the mask come in contact with each other in the first direction; and performing second exposure on the substrate so that second shots of the mask come in contact with each other so as to be distanced in the second direction and be offset with respect to the first shots in the first direction.

Abstract: A user-customized skin care method according to an embodiment of the present disclosure is capable of facilitating care for skin improvement by providing a user with customized skin care instructions through an analysis of a user skin condition by estimation models. In the customized skin care method, operation of a skin care device of a user is controlled according to skin care instructions estimated on the basis of personal information and skin condition information of the user, so that the user is provided with optimum customized skin care.

Abstract: A portable skin condition measuring apparatus according to an embodiment of the present disclosure is capable of complexly measuring and analyzing various skin condition indexes of a user by coming into contact with a user's face, body, or scalp. The portable skin condition measuring apparatus may solve inconvenience in measuring a user's skin condition and improve efficiency of measurement, determination, and care of the user's skin condition by measuring and analyzing various skin condition indexes of the user in a non-face-to-face manner.

Abstract: The present invention provides a substrate processing apparatus including: a process chamber having a process space in which a substrate is processed; a substrate support including a susceptor having a plurality of pocket grooves recessed in a circumferential direction from a top surface with a circular plate shape so that the substrate is seated, a shaft configured to rotate the susceptor, and a satellite seated in the pocket groove and on which the substrate is seated; and a gas injection unit disposed at an upper portion of the process chamber to face the substrate support, thereby injecting a process gas toward the substrate support.

Abstract: A skin measuring apparatus measures a skin moisture level using a voltage application electrode and a current detection electrode. The skin measuring apparatus includes an electrode driving module applying sinusoidal wave voltage to skin of a user through the voltage application electrode so that an amount of current is output from the skin through the current detection electrode, a signal detecting unit detecting the amount of current from the skin through the current detection electrode to calculate at least one of an impedance signal and an admittance signal, and a skin information determination unit analyzing the at least one of the impedance signal and the admittance signal to calculate the skin moisture level and a sweat production rate of the user, thereby analyzing the skin moisture level and the sweat generation rate more precisely without distortion.

Abstract: A heating assembly for a massage chair, wherein a heating element is separately operated. The heating assembly according to an embodiment having a first bracket with a plurality of massage balls rotatably mounted to the first bracket. A massage assembly is fixed to the first bracket and can perform at least one of up-and-down and left-and-right motions. A second bracket is mounted to the massage assembly or the first bracket A support part inserted at one end thereof into the second bracket. A heating element is mounted to the support part and an airbag is fixed to the support part so as to be opposite to the heating element. Wherein the heating assembly is mounted inside the backrest of a massage chair.

Abstract: The present invention provides a substrate processing apparatus including: a process chamber having a process space in which a substrate is processed; a substrate support including a susceptor having a plurality of pocket grooves recessed in a circumferential direction from a top surface with a circular plate shape so that the substrate is seated, a shaft configured to rotate the susceptor, and a satellite seated in the pocket groove and on which the substrate is seated; and a gas injection unit disposed at an upper portion of the process chamber to face the substrate support, thereby injecting a process gas toward the substrate support.

Abstract: A skin measuring apparatus measures a skin moisture level using a voltage application electrode and a current detection electrode. The skin measuring apparatus includes an electrode driving module applying sinusoidal wave voltage to skin of a user through the voltage application electrode so that an amount of current is output from the skin through the current detection electrode, a signal detecting unit detecting the amount of current from the skin through the current detection electrode to calculate at least one of an impedance signal and an admittance signal, and a skin information determination unit analyzing the at least one of the impedance signal and the admittance signal to calculate the skin moisture level and a sweat production rate of the user, thereby analyzing the skin moisture level and the sweat generation rate more precisely without distortion.

Abstract: Provided is a method for forming a thin film. The method for forming the thin film includes forming a first thin film having a first thickness with first crystallinity through an atomic layer deposition process and etching the first thin film by a predetermined thickness through an atomic layer etching process with respect to the first thin film to form a second thin film having a second thickness less than the first thickness.

Abstract: A heating assembly for a massage chair, wherein a heating element is separately operated. The heating assembly according to an embodiment having a first bracket with a plurality of massage balls rotatably mounted to the first bracket. A massage assembly is fixed to the first bracket and can perform at least one of up-and-down and left-and-right motions. A second bracket is mounted to the massage assembly or the first bracket A support part inserted at one end thereof into the second bracket. A heating element is mounted to the support part and an airbag is fixed to the support part so as to be opposite to the heating element. Wherein the heating assembly is mounted inside the backrest of a massage chair.

Abstract: Provided is a method for forming a thin film. The method for forming the thin film includes forming a first thin film having a first thickness with first crystallinity through an atomic layer deposition process and etching the first thin film by a predetermined thickness through an atomic layer etching process with respect to the first thin film to form a second thin film having a second thickness less than the first thickness.

Abstract: An air conditioner and a method for controlling the same are disclosed. The air conditioner is able to operate in an efficient cooling cycle while simultaneously guaranteeing superior cooling performance in a low-temperature operation region. In the air conditioner, an airflow directing apparatus, which is installed in an outdoor unit, suppresses not only natural convection of the air, but also heat exchange between the condenser and outdoor air by the blowing fan, such that the air conditioner forms a normal cooling cycle by guaranteeing condenser pressure. The air conditioner guarantees cooling performance of a low-temperature operation region by adjusting the amount of outdoor air flowing through blade control of the airflow directing apparatus, and operates in an efficient cooling cycle, resulting in acquisition of compressor reliability.

Abstract: A transepidermal water loss measurement device includes a cylindrical closed chamber having a closed end and an open end to come into contact with the skin at a position at which a rate of water loss is to be measured and a transepidermal water loss measurement unit that measures a rate of transepidermal water loss of the skin by detecting levels of humidity and changes in humidity level in the closed chamber.

Abstract: An air conditioner and a method for controlling the same are disclosed. The air conditioner is able to operate in an efficient cooling cycle while simultaneously guaranteeing superior cooling performance in a low-temperature operation region. In the air conditioner, an airflow directing apparatus, which is installed in an outdoor unit, suppresses not only natural convection of the air, but also heat exchange between the condenser and outdoor air by the blowing fan, such that the air conditioner forms a normal cooling cycle by guaranteeing condenser pressure. The air conditioner guarantees cooling performance of a low-temperature operation region by adjusting the amount of outdoor air flowing through blade control of the airflow directing apparatus, and operates in an efficient cooling cycle, resulting in acquisition of compressor reliability.

Abstract: Disclosed herein is a high Cr Ferritic/Martensitic steel comprising 0.04 to 0.13% by weight of carbon, 0.03 to 0.07% by weight of silicon, 0.40 to 0.50% by weight of manganese, 0.40 to 0.50% by weight of nickel, 8.5 to 9.5% by weight of chromium, 0.45 to 0.55% by weight of molybdenum, 0.10 to 0.25% by weight of vanadium, 0.02 to 0.10% by weight of tantalum, 0.21 to 0.25% by weight of niobium, 1.5 to 3.0% by weight of tungsten, 0.015 to 0.025% by weight of nitrogen, 0.01 to 0.02% by weight of boron and iron balance. By regulating the contents of alloying elements such as nitrogen, born, the high Cr Ferritic/Martensitic steel with superior tensile strength and creep resistance is provided, and can be effectively used as an in-core component material for sodium-cooled fast reactor (SFR).

Abstract: The present application discloses a martensitic oxide dispersion-strengthened alloy having enhanced high-temperature strength and creep properties. The alloy includes chromium (Cr) of 8 to 12% by weight, yttria (Y2O3) of 0.1 to 0.5% by weight, carbon (C) of 0.02 to 0.2% by weight, molybdenum (Mo) of 0.2 to 2% by weight, titanium (Ti) of 0.01 to 0.3% by weight, zirconium (Zr) of 0.01 to 0.2% by weight, nickel (Ni) of 0.05 to 0.2% by weight and the balance of iron (Fe). The application also discloses a method of making the alloy.

Abstract: Provided is a method of manufacturing a high strength ferritic/martensitic steel. The method includes melting a ferritic/martensitic steel, hot-working the melted ferritic/martensitic steel, normalizing the hot-worked ferritic/martensitic steel at a temperature of about 1050° C. to about 1200° C., tempering the ferritic/martensitic steel at a temperature of about 600° C. or less, and leaving MX precipitates while preventing a M23C6 precipitate from being precipitated, and cold-working and thermal-treating the ferritic/martensitic steel in a multistage fashion, and precipitating M23C6 precipitates. Through the above described configuration, the high strength ferritic/martensitic steel that prevents a ductility from being deteriorated even in a high-temperature environment may be manufactured.

Abstract: Provided are a showerhead assembly for depositing a thin film on a substrate and a thin film deposition apparatus having the same. The showerhead assembly includes a plurality of gas injection units radially disposed above a substrate, each of the plurality of gas injection units comprising a receiving part configured to receive a gas supplied from the outside and a plurality of injection holes configured to inject the gas within the receiving part.

Abstract: Provided are a gas injection device and substrate processing apparatus using the same. The gas injection device includes a plurality of gas injection units disposed above a substrate support part rotatably disposed within a chamber to support a plurality of substrates, the plurality of gas injection units being disposed along a circumference direction with respect to a center point of the substrate support part to inject a process gas onto the substrates. Each of the plurality of gas injection units includes a top plate in which an inlet configured to introduce the process gas is provided and an injection plate disposed under the top plate to define a gas diffusion space between the injection plate and the top plate along a radius direction of the substrate support part, the injection plate having a plurality of gas injection holes under the gas diffusion space to inject the process gas introduced through the inlet and diffused in the gas diffusion space onto the substrate.